package com.itheima.service;

import com.alibaba.dubbo.config.annotation.Service;
import com.itheima.constant.MessageConstant;
import com.itheima.dao.MemberDao;
import com.itheima.dao.OrderDao;
import com.itheima.dao.OrderSettingDao;
import com.itheima.entity.Result;
import com.itheima.pojo.Member;
import com.itheima.pojo.Order;
import com.itheima.pojo.OrderSetting;
import com.itheima.utils.DateUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.transaction.annotation.Transactional;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 体检预约服务
 */
@Service(interfaceClass = OrderService.class)
@Transactional
public class OrderServiceImpl implements OrderService {

    @Autowired
    private OrderSettingDao orderSettingDao;

    @Autowired
    private MemberDao memberDao;

    @Autowired
    private OrderDao orderDao;

    //体检预约
    @Override
    public Result order(Map map) throws Exception {

        //1.检查当前日期是否进行了预约设置
        String orderDate = (String) map.get("orderDate");
        Date date = DateUtils.parseString2Date(orderDate);
        OrderSetting orderSetting = orderSettingDao.findByOrderDate(date);
        if (orderSetting == null) {
            return new Result(false, MessageConstant.SELECTED_DATE_CANNOT_ORDER);
        }

        //2.检查预约日期是否预约已满
        int number = orderSetting.getNumber();//可预约人数
        int reservations = orderSetting.getReservations();//已预约人数
        if (reservations >= number) {
            //预约已满，不能预约
            return new Result(false, MessageConstant.ORDER_FULL);
        }

        //检查当前用户是否为会员，根据手机号判断
        String telephone = (String) map.get("telephone");
        Member member = memberDao.findByTelephone(telephone);

        //3.防止重复预约
        if (member != null) {
            Integer memberId = member.getId();
            int setmealId = Integer.parseInt((String) map.get("setmealId"));
            Order order = new Order(memberId, date, null, null, setmealId);
            List<Order> list = orderDao.findByCondition(order);
            if (list != null && list.size() > 0) {
                //已经完成了预约，不能重复预约
                return new Result(false, MessageConstant.HAS_ORDERED);
            }
        }
        //可以预约，设置预约人数加一
        orderSetting.setReservations(orderSetting.getReservations() + 1);
        orderSettingDao.editReservationsByOrderDate(orderSetting);

        // 4.检查当前用户是否为会员，如果是会员则直接完成预约，如果不是会员则自动完成注册并进行预约
        if (member == null) {
            //当前用户不是会员，需要添加到会员表
            member = new Member();
            member.setName((String) map.get("name"));
            member.setPhoneNumber(telephone);
            member.setIdCard((String) map.get("idCard"));
            member.setSex((String) map.get("sex"));
            member.setRegTime(new Date());
            memberDao.add(member);
        }

        //5.保存预约信息到预约表
        Order order = new Order(member.getId(), date, (String) map.get("orderType"), Order.ORDERSTATUS_NO,
                Integer.parseInt((String) map.get("setmealId")));
        orderDao.add(order);
        return new Result(true, MessageConstant.ORDER_SUCCESS, order.getId());

    }

    //根据id查询预约信息，包括体检人信息、套餐信息
    @Override
    public Map findById(Integer id) throws Exception {
        Map map = orderDao.findById4Detail(id);
        if (map != null) {
            //处理日期格式
            Date orderDate = (Date) map.get("orderDate");
            map.put("orderDate", DateUtils.parseDate2String(orderDate));
        }
        return map;
    }

    /**
     * 根据时间查询预约记录
     *
     * @param dates
     * @param realPhoneNum
     * @return
     */
    @Override
    public List findCondition(Map<String, Date> dates, String realPhoneNum) {
        //查询条件集合
        Map<String, String> map = new HashMap<>();
        //如果日期不为空
        if (dates != null && dates.size() > 0) {
            //获得开始结束日期
            Date date1 = dates.get("start");
            Date date2 = dates.get("end");
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
            String format = sdf.format(date1);
            String format1 = sdf.format(date2);
            //比较日期前后
            if (date1.before(date2)) {
                map.put("start", format);
                map.put("end", format1);
            } else {
                map.put("end", format);
                map.put("start", format1);
            }
            //日期为空查询默认范围
        } else {
            map.put("start", "0000-12-31");
            map.put("end", "9999-01-01");
        }
        //日期放入查询条件集合
        map.put("phone", realPhoneNum);
        //返回查询结果
        return orderDao.findCondition(map);
    }
}

